Distribution patterns of tight sandstone gas and shale gas  

作　　者：DAI Jinxing DONG Dazhong NI Yunyan GONG Deyu HUANG Shipeng HONG Feng ZHANG Yanling LIU Quanyou WU Xiaoqi FENG Ziqi 

机构地区：[1]Research Institute of Petroleum Exploration and Development,PetroChina,Beijing 100083,China [2]China University of Petroleum(Beijing),Beijing 102249,China [3]Peking University,Beijing 100871,China [4]Wuxi Institute of Petroleum Geology,Sinopec Petroleum Exploration and Production Research Institute,Wuxi 214126,China [5]China University of Petroleum(East China),Qingdao 266580,China

出　　处：《Petroleum Exploration and Development》2024年第4期767-779,共13页石油勘探与开发（英文版）

基　　金：Supported by the National Key R&D Project(2019YFC1805505);National Natural Science Foundation of China(42272188,42172149,U2244209);Science and Technology Special Project of China National Petroleum Corporation(2023YQX10101);Petrochemical Joint Fund Integration Project of National Natural Science Foundation of China(U20B6001);Shale Gas Academician Workstation Project of Guizhou Energy Industry Research Institute Co.,Ltd.([2021]45-2)。

摘　　要：Based on an elaboration of the resource potential and annual production of tight sandstone gas and shale gas in the United States and China,this paper reviews the researches on the distribution of tight sandstone gas and shale gas reservoirs,and analyzes the distribution characteristics and genetic types of tight sandstone gas reservoirs.In the United States,the proportion of tight sandstone gas in the total gas production declined from 20%-35%in 2008 to about 8%in 2023,and the shale gas production was 8310×10^(8)m^(3)in 2023,about 80%of the total gas production,in contrast to the range of 5%-17%during 2000-2008.In China,the proportion of tight sandstone gas in the total gas production increased from 16%in 2010 to 28%or higher in 2023.China began to produce shale gas in 2012,with the production reaching 250×10^(8)m^(3)in 2023,about 11%of the total gas production of the country.The distribution of shale gas reservoirs is continuous.According to the fault presence,fault displacement and gas layer thickness,the continuous shale gas reservoirs can be divided into two types:continuity and intermittency.Most previous studies believed that both tight sandstone gas reservoirs and shale gas reservoirs are continuous,but this paper holds that the distribution of tight sandstone gas reservoirs is not continuous.According to the trap types,tight sandstone gas reservoirs can be divided into lithologic,anticlinal,and synclinal reservoirs.The tight sandstone gas is coal-derived in typical basins in China and Egypt,but oil-type gas in typical basins in the United States and Oman.

关 键 词：shale gas tight sandstone gas reservoir characteristics continuous accumulation lithologic accumulation anticlinal accumulation synclinal accumulation coal-derived gas oil-type gas 

分 类 号：TE37[石油与天然气工程—油气田开发工程]